ClassAttributesTest.java revision 16243:98665911deff 
1/*
2 * Copyright (c) 2016, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 */
23
24/*
25 * @test
26 * @bug 8170595
27 * @summary Checks Class.isAnonymousClass, isMemberClass and isLocalClass
28 *          attributes
29 */
30
31public class ClassAttributesTest {
32
33    class NestedClass {}
34
35    static int test(Class<?> clazz, boolean anonymous, boolean local, boolean member) {
36        if (clazz.isAnonymousClass() != anonymous) {
37            System.err.println("Unexpected isAnonymousClass value for " +
38                               clazz.getName() + " expected: " + anonymous +
39                               " got: " + (!anonymous));
40            return 1;
41        }
42        if (clazz.isLocalClass() != local) {
43            System.err.println("Unexpected isLocalClass value for " +
44                               clazz.getName() + " expected: " + local +
45                               " got: " + (!local));
46            return 1;
47        }
48        if (clazz.isMemberClass() != member) {
49            System.err.println("Unexpected isMemberClass status for " +
50                               clazz.getName() + " expected: " + member +
51                               " got: " + (!member));
52            return 1;
53        }
54        return 0;
55    }
56
57    public static void main(String argv[]) {
58        int failures = 0;
59
60        class LocalClass {}
61        Cloneable clone = new Cloneable() {};
62        Runnable lambda = () -> System.out.println("run");
63
64        failures += test(ClassAttributesTest.class,       false, false, false);
65        failures += test(NestedClass.class,               false, false, true);
66        failures += test(LocalClass.class,                false, true,  false);
67        failures += test(clone.getClass(),                true,  false, false);
68
69        // Lambdas may be VM anonymous classes, but are named, non-local classes
70        // in this sense
71        failures += test(lambda.getClass(),               false, false, false);
72
73        if (failures != 0)
74            throw new RuntimeException("Test failed with " + failures  + " failures.");
75    }
76}
77